WMSIC Electronic Components

RUILON SMBJ24A

ModelSMBJ24A
PackageDO-214AA(SMB)
BrandRUILON
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 25+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
RUILON SMBJ24A
Type
RUILON
Minimum package
3000

Technical parameters

Electronic Component
RUILON
Electronic Component
SMBJ24A
Electronic Component
1
Package
DO-214AA(SMB)
Electronic Component
Electronic Component
Type
TVS
Electronic Component
ESD and Surge Protection (TVS / ESD)
Electronic Component
0.232g
Electronic Component
1
Electronic Component
BM0227695229
Operating Temperature
55℃~+150℃
Voltage
38.9V
Electronic Component
IEC 61000-4-4;IEC 61000-4-2
Current(Ir)
1uA
Voltage(VBR)
30.7V
Electronic Component
3000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

SMBJ24A 产品概述(RUILON 瑞隆源)

一、产品简介

SMBJ24A 是 RUILON(瑞隆源)推出的一款单向瞬态抑制二极管(TVS),封装为 DO-214AA(SMB)。器件针对 24V 直流系统及类似电压等级的瞬态过压保护而设计,能够在电源线、通信线和工业接口等处迅速钳位浪涌电压,保护下游敏感器件不被冲击损坏。

二、主要电气参数

  • 类型:TVS(二极管型瞬态抑制器),极性:单向
  • 反向工作电压 Vrwm:24V(典型系统稳态电压)
  • 击穿电压 Vbr:29.5V(测试电流条件下)
  • 钳位电压 Vc:38.9V(针对峰值脉冲电流时的钳位值)
  • 峰值脉冲功率 Ppp:600W(10/1000 μs 波形)
  • 峰值脉冲电流 Ipp:15.5A(10/1000 μs)
  • 反向静态电流 Ir:典型 1 μA(在 Vrwm 条件下)
  • 工作温度范围:-55 ℃ 至 +150 ℃
  • 封装:DO-214AA(SMB)

注:钳位电压和峰值电流参数基于标准 10/1000 μs 浪涌波形测量,实际值会受测试条件和电路阻抗影响。

三、典型特性与优势

  • 高能量吸收能力:600W(10/1000 μs)峰值功率,适用于雷击或开关瞬态等高能量脉冲场景。
  • 低漏电流:Vrwm 下 Ir 仅约 1 μA,有利于在待机和敏感测量电路中维持低功耗与高精度。
  • 宽温度适应性:-55 ℃~+150 ℃,满足汽车、工业级和恶劣环境应用需求。
  • 单向保护:对正向正极性瞬态具高效钳位能力,适合 DC 供电线路保护。

四、典型应用场景

  • 24V 工业电源防护(PLC、驱动器、控制模块)
  • 汽车电子(车载 24V 系统、辅助电源保护)
  • 通信设备与基站接口保护
  • 电池管理系统、逆变器输入/输出浪涌抑制
  • 继电器或电机驱动器产生的反向瞬态抑制

五、封装与安装要点

SMBJ(DO-214AA)封装便于自动化贴装与波峰/回流焊工艺。安装时建议:

  • 将器件近源(被保护端)布局,尽量缩短导线与走线长度以减小寄生电感。
  • 单向器件有极性标识(阴极带),在保护 DC 线时阴极接被保护的正极,阳极接地或回流。
  • 注意散热与焊盘设计,长期大功率吸收时需考虑热循环与温升。

六、选型与使用注意

  • 若系统稳态电压接近或高于 Vrwm(24V),须选择更高 Vrwm 的型号或考虑双向器件;反之可保证在正常工作下不进入击穿区。
  • 钳位电压 38.9V 在 Ipp 条件下表征最大被保护电压,设计器件和下游元件时以此为上限参考。
  • 在并联或并联多只使用时需评估共享电流能力与热布局,避免单只超载。
  • 对环境标准(如 RoHS)或额外认证有需求时,请向供应商确认具体型号资料与合规证书。

七、可靠性与测试建议

在设计验证阶段建议进行实际浪涌(10/1000 μs)注入测试、温度循环和长期稳态漏电测试,以确认在目标应用下的保护效果与寿命。同时关注焊接热循环对封装和内部电极的影响,确保在 -55~+150 ℃ 的工作条件下性能稳定。

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